TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9–2350–311–10 Change 2 2–55 Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER Location Item No. Interval Item to Check/ Service Crewmember Procedure Not Fully Mission Capable If: 35 During Powerplant DRIVER CAUTION If you notice a shrill whine (above normal tur- bine whine), rubbing, vibrations, and/or a sud- den increase in exhaust smoke, shut off en- gine and notify unit maintenance. Check for unusual noises or vibrations. Performance or function is inade- quate or there are unusual noises or vibra- tions. 36 During Recuperator Assembly CHIEF OF SECTION WARNING Do not attempt to remove drain plug complete- ly. Hydraulic fluid in recuperator is under high pressure. CAUTION • If drain plug is loosened for draining fluid, check for leaks after tightening. • To prevent damage to gasket cover of cover, loosen cap screws to stop pins before rotating cover. DRAIN PLUG CAP SCREW COVER